A Drum Lens is a variation of a ball lens where a portion of the ball is ground down to a smaller diameter.
These lenses are used in similar applications to those of ball lenses.
The Drum Lens adds the ability to handle and package it in a different way.
Features:
●Cylindrical Sides with Convex curvatures
●Typical Ball lens Performance
●High Transmittance
●Low Reflectance
●Accurate Wavelength manipulation
Applications:
●Compact Fiberoptical Components
●Laser Systems
●Micro Optical Devices
●Optical Assemblies
| Specifications: | |
| Material | BK7 grade A, B270, UV grade Fused Silica, Sapphire etc. |
| Diameter (φ) Tolerance | +0/-0.05mm (Standard), up to +0.000/-0.002mm |
| Length (L) Tolerance | ±0.05mm (Standard), up to +0/-0.002um |
| Surface Quality | 60-40 S/D (Standard), up to 20-10 S/D |
| Coating | none |
| BK7 Drum Lens Standard Products: | ||
| Part No. | φ(mm) | L(mm) |
| 2.0 | 2.5 | |
| 2.0 | 3.0 | |
| 3.0 | 4.0 | |
| 4.0 | 5.0 | |
Note:
Coatings and other materials are available upon request.
Sapphire Dome, Jewel Ball, Ruby Ball and Jewel Blind Holed Ball etc are also available upon request.
ATE-DENMARK is an OEM manufacturer, and we don´t have much standard products in stock.
So please contact us for your custom optics.